Why does the function trigreduce cause the error "No error" in STACK? by Evgeniy Grishenko - Friday, 5 June 2020, 5:17 AM Number of replies: 0 Why does the function trigreduce cause the error in STACK?For example:F: atan(sqrt(2/3)*(tan(x/2)-1));R: trigreduce( F );As a result error: "No error". What does it mean? Average of ratings: - Permalink Reply